131633680

素因数分解:

$2^4\times 5^1\times {\mathrm{1645421}}^1$

素因数の和:1645434

約数の個数: 20

約数和(自身を含む): 306048492

約数和(自身を除く): 174414812

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1645421, 3290842, 6581684, 8227105, 13163368, 16454210, 26326736, 32908420, 65816840, 131633680]

約数ペア:

[(1, 131633680), (2, 65816840), (4, 32908420), (5, 26326736), (8, 16454210), (10, 13163368), (16, 8227105), (20, 6581684), (40, 3290842), (80, 1645421)]